I did bring up this issue previously, but basically what happens is by default Firefox uses Google's malware/bad website servers which are updated by Google when they scan websites for malware/bad websites. So whenever you visit a page in Firefox, it's checked against Google's servers to see if Google thinks there's a problem with the page. If it does, you get the warning you've been seeing. If you just want to shut that error up, using IE is an option or you can turn off this feature in Firefox by going to the Tools Menu, then select Options. Once the Options menu opens, choose Security, and then uncheck the Block Reported Attack Sites option. This disables the Google security check and you can browser the forums without seeing the alert. Keep in mind though, turning off this protection does open you to other threats since then nothing is being checked.

As to why this would happen is really a fault of the system Google employs, for if a website is subject to an attack or even ads that are malicious, neither at the fault of the website itself and Google happens to scan the website at that bad moment, it gets blacklisted by Google and often it takes quite a bit of effort to get whitelisted by Google, even after correcting any issues.

It's definitely odd, although I've just realized, only the forums are being targeted by Google by this warning, at least in my experience, visit any other part of PS3Center.net outside of the forums and you won't see that warning in Firefox, no matter if the protection is turned on or not.

That being said, it would be nice if someone on the staff could give a concrete explanation for everything that is going on right now and whether it is safe for all users to come here (I'm not terribly worried as I run far greater protection that most users, have up to date software all around and have plans in place in case of an infection). Well that and a rough timeframe for the process of fixing this problem (I say rough because I know Google is unpredictable in lifting a website from the blacklist).

Issue still exists for Firefox users as when the Block attack websites feature is on, the exact same Google alert appears as we have already been getting. Doesn't matter if I use the Firefox 4 beta or the stable current release, 3.6.1.2.